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1. Web Log analysis in Java    stackoverflow.com

How to read a web server log file in Java. This file is getting updated all the time. If I open a new FileInputStream, will it read the log real ...

2. Detect user logged on a computer using Java    stackoverflow.com

I want to develop an Java application that can detect the user logged on a Window Domain. These credentials are going to be used to logging on the Java application. How can ...

3. Load java.util.logging.config.file for default initialization    stackoverflow.com

I'm trying to load a custom log.properties file when my application is started. My properties file is in the same package as my main class, so i assumed that the -Djava.util.logging.config.file=log.properties command ...

4. In Java, how can I include dynamic version information in a log file?    stackoverflow.com

From a Java application I can log a string, using a custom logging framework, as follows:

logger.info("Version 1.2 of the application is currently running");
Therefore when a user sends me a log file ...

5. log file is not getting created using JDK logging with Commons-logging    stackoverflow.com

When I run the TestJcLLoggingService class log messages are coming to Console but no log file is created, please help me if you know the answer. two source files are pasted below. TestJcLLoggingService.java ...

6. Can java.util.logging be configured to use compressed log files?    stackoverflow.com

Is it possible to configure java.util.logging to compress log files when it "rolls" onto using a new log file? For example, an extract from my log configuration file looks like ...

7. java file sharing application, user logging    stackoverflow.com

OK I have so much questions regarding my file sharing application that I don't know where to start. My Java knowledge is very limited and I will be satisfied with any ...

8. DailyRollingFileHandler ---- Files should be rotated on a daily basis    stackoverflow.com

We have a requirment which requires to have an Handler that is extended from Java logging and allows to have the files rotated on daily basis. Currently Java util logging do have ...

9. How to exchange the svn log into a xml/txt file    stackoverflow.com

When i run "svn log ....... --xml", it just also dislpay in the console. Is there a way and how to copy that log in other xml/txt file? Because then i want ...





10. How to choose the location of a log file for a Java application in a platform independent way?    stackoverflow.com

I'm writing a java application. Currently this produces a file called "trace.txt" in the same directory the .jar file lives. This can sometimes cause issue with file permissions, eg writing to ...

11. Efficiently store easily parsable data in a file?    stackoverflow.com

I am needing to store easily parsable data in a file as an alternative to the database backed solution (not up for debate). Since its going to be storing lots of ...

12. why cant I use log files in java runtime    stackoverflow.com

I have (in java),

rt.exec("qq.exe -i ..(some other parameters) > qq.log");//*1
when I run qq.exe -i ..(some other parameters) > qq.log in terminal It works fine and keeps the qq.log file correctly. However ...

13. How to extract error info from Java log files (post-logging)    stackoverflow.com

I'm trying to collect some advices on error logging in java. My log file is huge and going trough it is time consuming, currently I'm grep(ing) my log looking for error(ERROR) ...

14. Tool to Monitor/Tail Log Files given Name pattern/Time of creation    stackoverflow.com

I am generating a bunch of server app loggs via NLog. Until now I've used LogExpert to monitor them.
The problem now is that I would like to avoid opening each latest timestamped ...

15. Java application crashing and producing an error log file    stackoverflow.com

I have a java application that uses ICEpdf to render pdf documents. Recently, java has been crashing and producing this error log:

#
# A fatal error has been detected by the ...

16. multiple log files being generated    stackoverflow.com

I have written an application wherein I am downloading email and logging details in a file called my.log using a filehandler. FileHandler handler = new FileHandler("my.log",5242880,1,true); loggerObject.addHandler(handler); Although the logging is happening correctly, multiple ...





17. Is it possible to create multiple log files with JCL?    stackoverflow.com

I am trying to save the results of a specific action in the server side of my application so that i can use the logs for mining purposes. To send the ...

18. What is the best log file format?    stackoverflow.com

We are developing a database tool and we'd like to write a log file in a format which is extendable and easy to be imported into a database table. We all ...

19. Tool to extract java stack traces from log files    stackoverflow.com

Is there any tool that can extract a list of stack traces appearing in the log file and probably count unique ones? EDIT: I would preffer something that is not GUI-based ...

20. Java - Need Verbose GC logging to Separate Files    stackoverflow.com

I understand there's -Xloggc option exists for outputting GC output to separate file. But it doesn't work for me. I've 16 java processes with same main running on one ...

21. Most efficient way to check if a file is empty in Java on Windows    stackoverflow.com

I am trying to check if a log file is empty (meaning no errors) or not, in Java, on Windows. I have tried using 2 methods so far. Method 1 (Failure)

FileInputStream fis ...

22. How to clear hs_err_pid log file in home directory    stackoverflow.com

I have lots of log file in my home directory:

hs_err_pid2326.log
hs_err_pid2416.log
I believe it is a java error log file, how to remove it and stop creating them? Java version:
[kelvin@localhost ~]$ java -version
java version ...

23. log file viewer for java applications    stackoverflow.com

All, I was exploring if there can be a tool that helps me to this:

  1. View a log file in reverse chronological order i.e. I want to see the latest log statements being ...

24. red5 - Where are the application log files kept?    stackoverflow.com

I just wanted to ask where the application logs are kept, so if i had code in my class as so: import org.red5.logging.Red5LoggerFactory; logger.debug("Recording show for: {}", conn.getScope().getContextPath()); whwre would this text be written ...

25. Using the java.util.logging API to log different levels to separate files    stackoverflow.com

i would like to know how to use the java.util.logging api, in order to have log message written in different log file depending on the level used. If the level ...

27. logging    coderanch.com

Hi, I have a process running for a long time during which i need to log some information about the process to some file. I am not supposed to use new BufferedWriter(new FileWriter(filename)) because i should not keep the file opened during the process. I need a way to store log info in some stream/sink and write it to the file ...

28. How to limit the size of a log file?    coderanch.com

Hi, I am not aware of any methods either. I worked around this by creating numbered versions of the log file using an ErrorLogger class. The user can request the server application to close the current version of the log file and open a new one. This would then allow you to archive or delete the old ones. The code for ...

29. Application Log File - Performance issues    coderanch.com

Hello guys, I wonder if you could help me out... I need to write an application log file... I wrote the following method and each time I want to write some String to the file I call it but I'm not sure if the performance is the best I can get. What do you think? Do you know a better way ...

30. Serial port activity logging tool    coderanch.com

31. process real time logging    coderanch.com

I am working on a project that requires upload real time unix system logging to a remote database server. Can I develop a socket to accept info from local client? I am concerning too many connections. Also I am thinking about parsing local system log files and send to remote db server. Is there a way to let the Java Program ...

32. Retriving data from a log file    coderanch.com

On one small server I have a log writer that writes to a circular buffer in memory. Once it is full, the new entries overwrite the oldest. I don't know if you could afford the memory to build such a thing using age to grow and shrink the buffer - maybe a LinkedList - as time goes by. Here's a snippet ...

33. Creating Log file    coderanch.com

Hi - I'm trying to log actions from an application using the code below: public boolean writeAudit(String entry) { Date dateNtime = new Date(); SimpleDateFormat formatter = new SimpleDateFormat("E yyyy.MM.dd hh:mm:ss"); try { FileWriter fw = new FileWriter("DBFAT_log.txt"); StringBuffer sb = new StringBuffer(); sb.append(formatter.format(dateNtime) + ": " + entry); fw.write(sb.toString()); fw.flush(); fw.close(); return true; } catch (IOException e) { System.err.println("Problem writing ...

34. logging byte[]    coderanch.com

36. need to filter data from log files and insert into xl sheet using POI?    coderanch.com

need to filter data from log files and insert into xl sheet using POI? how Is there any interface between these two which can support this feature. Earlier i was getting data from database and one by one kept it in POI so that xl sheet can be generated easily, there resulset.getcolumn() helped getting data one by one. Now someone has ...

37. Deciphering the contents of a hs_err_pid*.log file    coderanch.com

In the last couple weeks, our production system's JVM has twice gone AWOL overnight. The java process is simply not there anymore, nothing to be found in any application log(4j) files. In the bin directory, we found a couple of those hs_err_pid.log files, and it contains all sorts of information as to what the state of the JVM was, when it ...

38. Log file    coderanch.com

39. Where can I find my log files??    coderanch.com

40. Log files    coderanch.com

41. Log file path for DbConnectionBroker    coderanch.com

For those who deployed DbConnectionBroker and got it to work, what should be the path to my log file be if I named it "mysql.log" and placed it in my default web folder (which is the folder that holds my entire site). I have tried "http://www.MyWebSite.com/mysql.log" but it didn't work. This happened when I deployed my site onto my web-host. Locally, ...

42. Log file no longer logging...    coderanch.com

I added some code to my servlet to log System.out.println() error messages to my log.txt file: public class WriteToLogFileTest2 extends HttpServlet { private FileOutputStream fos; private PrintStream outPrintStream; public void init(ServletConfig config) throws ServletException { super.init(config); try { fos = new FileOutputStream("/home/jh/java/ServletLogs/log.txt"); outPrintStream = new PrintStream(fos, true); //(OutputStream, autoFlush) System.setOut(outPrintStream); } catch (FileNotFoundException fnfe) { getServletContext().log("Could not set errorPrintStream - FileNotFoundException: ...

43. how to maintain log files    coderanch.com

44. Regards Log file    coderanch.com

45. Directing HOTSPOT log files    coderanch.com

For audit purposes we need to make the directory housing the .jar file we invoke readonly. In the pass we have had hs_err_pid.log files generated in this directory, so we would like to direct these to another directory. I'm sure there must be a switch to do this but I can't find it; can anyone help? The run line we currently ...

46. Logging to a file    coderanch.com

47. creating a log file.....    coderanch.com

49. How to get log file location inside code    coderanch.com

I use the java logger in my application, and define the log file location in the application's properties file. Now my requirement is to know where is the log file location inside my app, for which i was looking for some api's in the java.util.logging classes but cant seem to find one. Is there a way to get the log file ...

50. putting the log in a seperate file    coderanch.com

51. File Logging Problem    coderanch.com

52. java.util.logging config file    coderanch.com

Hello, Sun's documentation on their configuration file for their logging package is not very good. What I'd like to know is if it is possible to use the logging configuration file to assign a class a certain handler? Say I have 1 class, org.moss.myapp.SQLExecutor that I want logging to go to a file instead of the console. Can this be done ...

53. File logging    coderanch.com

Originally posted by AJ sisodia: and what a log file and in what respect it is used in Java? When you code your application, when something goes wrong, how do you verify what could went wrong? Like say you've a method for adding a record into the database, but the new record wasn't added, you would like to know what went ...

54. Need help w/ timestamp incl in log file names.    coderanch.com

Hello, I'm a new guy so go easy on me... I'm working on a Websphere/RAD 6.0 J2EE application and trying to get my log files to include either a timestamp or milli-sec data within the name of the log file. I currently have it set up to include the date in the log file name only. I'm using the following info ...

55. log file    coderanch.com

56. After installation, where is log file?    coderanch.com

Talk about a newbie, I can't even get past the installation. I just installed Java 1.5.0_07 on my computer, using Windows XP. I had a few problems so wanted to look at the installation log file. First off, does the installation have a log file? If so, where is it? My Java was installed into: C:\Program Files\Java . Thanks.

57. Logging to one file from multiple java files    coderanch.com

Hi Guys, I want to set up a logger that writes to one file from many different java files. I just want to user the Logger class for now as I think thats all I need for my program. public class Game { public final Logger myLogger = Logger.getLogger("Test"); public Game theGame = new Game(); public static void main(String[] args) throws ...

58. about log file...    coderanch.com

59. abt log file    coderanch.com

hi ... in my application i want to create a log file whenever a error occurs and all errors which are cought in try catch block should be transfered to this log file ... please help me out how can i achive this means how can i creat a log file... thank you...

60. mask cc number in log files from a string in the log file    coderanch.com

hi issue :-- i want to mask the creditcard number which gets displayed in my log files . i have a class for creditcard processing which gets the information abt creditcard and writes it to a log file - i have to find the position of the cc in the long string" transaction string" which has details abt user id etc ...

61. code to search a string in a log file.    coderanch.com

62. Checking the Log Files when Runtime exception occurs    coderanch.com

Hi Pavan, I dont know how to work with Log4j but i do know one thing that when i encounter a runtime exception when executing applications in Tomcat, the details of the exception such as the stack trace are available in the logs directory of Apache. I believe this feature is application server specific and is different from the Log4j logging ...

63. HOw to create user defined log file for an application    coderanch.com

Vinoth Thirunavukarasu wrote:Thanks for your reply. Yes, I want to make log4j. Using Log4j : Download the log4j software (http://logging.apache.org/log4j/1.2/download.html) and extract log4j.jar out of it. Include log4j.jar in your application's classpath so that logging methods can find the needed classes. Save the following sample code in a file named TestLogging.java somewhere in the classpath. import org.apache.log4j.*; // How ...

64. where will be the log file??    coderanch.com

65. Appending current date and time to the log file name    coderanch.com

Actually the requirement is to append the current date and time with the log file name. To do this we have actually given it this way try { if (fos1 == null) { fos1= new FileOutputStream(new File("ATT_FAILED"+ "_" + new Date().toString().replaceAll(" ","") + ".log")); System.out.println(fos1); But it throws a exception saying [9/3/09 11:18:53:297 IST] 00000034 SystemErr java.io.FileNotFoundException: ATT_FAILED_ThuSep0311:18:53IST2009.log (The parameter is ...

66. Log file created for every invocation    coderanch.com

Hi I am trying to write a simple program to log the application data using Java logging API.As we are using Java 1.2 ,i am using LumberJack for logging. The problem is everytime i run the class a new log file is created like filename.log.0,filename.log.1 and so on. How do i avoid this?Also i would like to know how to rollover ...

67. Chaning the log file    coderanch.com

Hi, There is one (java)application which writes data(like Credit card number) to log file in text format.After log file size reaches 10MB, application creates new log file App.log.1,App.log.2...) We want to hide this Credit card number and customer details in log file.One(and better) way is to change the code in that application which writes this Customer data.This application is run once ...

68. Where is logging file stored?    coderanch.com

I know there are no stupid questions, but this one feels stupid. I am trying to use the commons-logging API in a servlet, and can't figure out where the log is written. Here is part of my code import java.io.*; import java.util.*; import javax.servlet.*; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import javax.servlet.http.*; public class EventManagerServlet extends HttpServlet { private Log log = LogFactory.getLog(EventManagerServlet.class); ...

69. Java utility program which monitors Log file    coderanch.com

HI, I need any open source Java utility program which monitors Log file ever 1 hour and send messages to external systems using SNMP protocal. Atleast similar tool wich canbe customizable will also so much helpful. I found some UI tools which does this but I have requirement which monitors and sends events/messages to external systems. So cannot use those UI ...

70. How to capture java.lang.Error in log files    coderanch.com

Hi all, I have a standalone java enviornment with robust exception handling and the application is well tested. But some times the process flow is not behaving the way it is expected. Thus I would want to keep track of anything abnormal that might be happening by looking at the log files. I am thinking that log4j configuration might not help ...

71. create log file    coderanch.com

There are a whole lot of logging frameworks out there. Log4j is one of the most popular ones. I prefer the "successor" of log4j: slf4j with the logback implementation. Slf4j separates the api from the actual implementation and can be used in conjunction with log4j. Log4j, slf4j and logback are all made by Ceki Glc.

72. searching in log files    coderanch.com

Hi friends I have multiple log file of my application.I have to search a string from these file.currently i am using shell script to grep and cut some fields of that line in which string matched but it is giving response almost in 5 minute which is too much. have we any alternative in java to search from multiple files which ...

73. adding custom log levels to config file    coderanch.com

Hi Rick, welcome to CodeRanch.import java.util.logging.*; public final class MyLevel extends Level { private static final Level instance = new MyLevel(); private MyLevel() { super("MY_LEVEL", 666); } public static Level getMyLevel() { return instance; } public static void main(String... args) { Level level = Logger.getAnonymousLogger().getParent().getLevel(); System.out.println(level == getMyLevel()); } } I first edited lib/logging.properties to make .level= MY_LEVEL. My test program ...

74. java.io.FileNotFoundException: (Too many open files) in Opmn logs    coderanch.com

Oracle Application server. After concurency requests came into apache server. it throws HTTP 500 Error. In opmn logs islands also showing 29/10/11 21:18:31 java.io.FileNotFoundException:********/Logs/ (Too many open files) 29/10/11 21:18:31 at java.io.FileOutputStream.openAppend(Native Method) 29/10/11 21:18:31 at java.io.FileOutputStream.(FileOutputStream.java:177) 29/10/11 21:18:31 at java.io.FileOutputStream.(FileOutputStream.java:102) 29/10/11 21:18:31 at com.integrator.lib.Logger.writeLog(Logger.java:28) 29/10/11 21:18:31 at com.integrator.lib.ProcessHttpRequest.getResponse(ProcessHttpRequest.java:840) 29/10/11 21:18:31 at NECIBRedirect.service(NECIBRedirect.java:133) 29/10/11 21:18:31 at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) 29/10/11 21:18:31 at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:835) ...

75. Issue of printing multiple lines in log file    coderanch.com

Hi, I am using log4j to log the details. when the program is invoked first, the log is getting updated only once in log file. If the program is invoked second time, every lines mentioned in my program to print in log is getting printed 2 times. It goes on every time when i invoke the application. I have used the ...

76. program terminates itself and leave log file called hr_err_pid in desktop    java-forums.org

public class RunUSBControllerTest extends JFrame{ /** Creates a new instance of RunUSBControllerTest */ public RunUSBControllerTest() { Host host; try { host = HostFactory.getHost(); host.addUSBListener(new ControllerUSBListener() { public void deviceAdded (Device dev) { System.out.println("added"); } public void deviceRemoved(Device dev) { System.out.println("removed"); } }); } catch (IOException e) { e.printStackTrace(); } setSize(100, 100); setLocationRelativeTo(this); setVisible(true); } public static void main(String[] args1) { RunUSBControllerTest ...

77. Urgent help to change value of log file    java-forums.org

79. help with logging into files    forums.oracle.com

/** * The constructor. * @throws IOException */ public SampleConsoleHandler() { //The Constructor try { fh = new FileHandler ( "%h/Log%g.txt",1024*1024, 5,true) ; fh.setLevel(Level.ALL); logger.addHandler(fh); } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } /** * the command has been executed, so extract the needed information ...

80. tell me about java log files & how to get it    forums.oracle.com

81. Question on logging to file    forums.oracle.com

82. Search for a word in a Windows log file    forums.oracle.com

Hi, Some log files in Windows are stored in this format: ABCD is written as 41 00 42 00 43 00 44 to hide the real text. ABCD is clear displayed with a texts editor because the 0x00 characters are skipped. I would like to write a java program able to check if the word ABCD is in the log file, ...

83. Trying to log using config file    forums.oracle.com

84. Log files    forums.oracle.com

class FileReadTest { public static void main (String[] args) { FileReadTest t = new FileReadTest(); t.readMyFile(); } void readMyFile() { String record = null; int recCount = 0; try { FileReader fr = new FileReader("Members.txt"); BufferedReader br = new BufferedReader(fr); record = new String(); while ((record = br.readLine()) != null) { recCount++; System.out.println(recCount + ": " + record); } } catch ...

85. Reg:printing contents to log file    forums.oracle.com

86. How can you scan a log file and then use extracted data?    forums.oracle.com

I have log files that can contain over 3000 lines of code and for the most part looks like this: Arien's slash <<< ERADICATES >>> Icingdeath! -=158=- a cave bear's claw <<< ERADICATES >>> Icingdeath! -=139=- Parrish utters the words, 'yjrr pzar'. Arien rescues Shargaas! Kitiara's counterattack does UNSPEAKABLE things to Icingdeath! -=636=- Icingdeath's claw does UNSPEAKABLE things to Arien! -=760=- ...

87. Logging to file instead System.out    forums.oracle.com

Hi, I have some (no-opensource) libraries which write their logs to standart output. Now I need to write these logs to file. Is there any way how do it? For example - if i call some method it logged to system console INFO: Object created. ... and I need to write this to file

88. Create log file    forums.oracle.com

89. java Logging config file for multiple FileHandlers    forums.oracle.com

That config data is in the wrong format. You use a comma-separated list of formatters, etc. You don't list things twice to get a second handler/formatter/whatever; presumably that would just overwrite the previous assignment. Actually I think there are other problems with that format but I can't recall the details; google for the spec and experiment.

90. Need to change the format of the Log file.    forums.oracle.com

91. Creating Log files.    forums.oracle.com

I haven't decided on a kind of a log file. which is why I need some ideas of generating log files. I know that as the contents of each file grows, the number of calculations would grow exponentially. and that's the reason I would like to make it efficient in terms of execution and memory. Also I have the option of ...

92. How to check if a (log)file is already open    forums.oracle.com

93. Log file analysis    forums.oracle.com

Hi to all Developers. I am developing an application for web statistics analysis. The main part of it is to get the log file of website from server. We can get the log file from web hosting site by manually. But i want to get the log file through the ftp connection, but i am not able to locate the path ...

94. how to set log filename dynamically    forums.oracle.com

I wouldn't try to mess with the file name. I'd use logging the way it is intended - with the correct log file name configured. Even if you successfully do that, what do you suppose will happen when the log "rolls over"? Do you expect it to honor the fact that you've changed the base file name? I would expect it ...

95. Log file by current date and time    forums.oracle.com

SimpleDateFormat bartDateFormat = new SimpleDateFormat("yyyy_MM_dd"); SimpleDateFormat timeformat = new SimpleDateFormat("HH_mm_ss SSS"); Date date = new Date(); String dateValue = (bartDateFormat.format(date)); String time = timeformat.format(date); String strName = "TodayDate_"; String datetime = strName + dateValue + "_" + time; String strDirectory = String fileName = strDirectory + " " + datetime + ".txt"; File chekdir = new File(strDirectory); // Verify the Directory ...

96. Files, logging java    forums.oracle.com

97. Log File    forums.oracle.com

98. Renaming log file    forums.oracle.com

I am using Daily Rolling File Appender to generate log files. Currently my log files are generated as "Filename.log.date" I would like to rename this as "Filename.log.sequence of numbers" like "Filename.log.1", "Filename.log.2" and so on. Also as each day passes, the file which was named as "Filename.log.1" should be renamed as "Filename.log.2" Please provide suggestions as to what to do. Edited ...

99. loggger.log file is not running.    forums.oracle.com

100. Java Logging in same file    forums.oracle.com

Hi Can i only have one log file for logging all the records, and when it reaches a particular size, it would delete the file and create a file with same name, For example I have a log file called MyLog.file, and when it reached 10000 it deletes and recreates the log file and start adding entries to it. I dont ...